#6587FF
Closest named color: Soft Blue (#6488EA). oklch(65.7% 0.181 269.1), rgb(101, 135, 255).
Aa
Black text reads best on this color (6.46:1).
About this color
#6587FF is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.181 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.032 away. Black text reads best on it, at 6.46:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.46:1 |
| White text | 3.24:1 |
Values
| HEX | #6587FF |
| RGB | rgb(101, 135, 255) |
| HSL | hsl(227, 100%, 70%) |
| OKLCH | oklch(65.7% 0.181 269.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6587FF | 3.24:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #6587FF | 6.46:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #6587FF text on white | 3.24:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #6587FF text on black | 6.46:1 | AA | Lc -42.2 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CCD9FB
oklch(88.6% 0.049 268.8)
-
Step 300
300
#A9BFFB
oklch(81% 0.089 268.8)
-
Step 400
400
#7D9BF9
oklch(70.8% 0.142 269.2)
-
Step 500
500 (this color)
#6587FF
oklch(65.7% 0.181 269.1)
-
Step 600
600
#4664E5
oklch(55.6% 0.198 269.1)
-
Step 700
700
#3852C7
oklch(49.1% 0.184 269)
-
Step 800
800
#2F44A1
oklch(42.7% 0.152 269.3)
-
Step 900
900
#293B7F
oklch(37.8% 0.117 269)
-
Step 950
950
#18234B
oklch(27.1% 0.075 269.3)
#6587FF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4B96FF | 0.042 |
| Deuteranopia (no green cones) | #2F88FC | 0.046 |
| Tritanopia (no blue cones) | #00A2B7 | 0.155 |
| Achromatopsia (no color) | #8F8F8F | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6587FF
#6587FF
oklch(65.7% 0.181 269.1)
- #B28C00
#B28C00
oklch(65.7% 0.134 89.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6587FF, closest first.
No curated palette has a color within ΔE 0.04 of #6587FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.032
- Cornflower #6A79F7 ΔE 0.034
- Cornflower Blue #6495ED ΔE 0.049
- Lavender Blue #8B88F8 ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.052
- Periwinkle #8E82FE ΔE 0.053
- Dark Sky Blue #448EE4 ΔE 0.057
Use #6587FF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.