#587BF8
Closest named color: Cornflower (#6A79F7). oklch(62.3% 0.19 268.6), rgb(88, 123, 248).
Aa
Black text reads best on this color (5.60:1).
About this color
#587BF8 is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.190 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.021 away. Black text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #587BF8 |
| RGB | rgb(88, 123, 248) |
| HSL | hsl(227, 92%, 66%) |
| OKLCH | oklch(62.3% 0.19 268.6) |
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 #587BF8 | 3.74:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #587BF8 | 5.60:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #587BF8 text on white | 3.74:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #587BF8 text on black | 5.60:1 | AA | Lc -37.0 | 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
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CBD9FC
oklch(88.6% 0.051 268.1)
-
Step 300
300
#A7BFFE
oklch(81% 0.093 268.2)
-
Step 400
400
#7A9BFD
oklch(70.8% 0.148 268.4)
-
Step 500
500 (this color)
#587BF8
oklch(62.3% 0.19 268.6)
-
Step 600
600
#4363EA
oklch(55.6% 0.207 268.6)
-
Step 700
700
#3551CC
oklch(49.2% 0.193 268.4)
-
Step 800
800
#2C43A5
oklch(42.7% 0.16 268.6)
-
Step 900
900
#273A82
oklch(37.7% 0.123 268.7)
-
Step 950
950
#17234C
oklch(27.1% 0.077 268.6)
#587BF8 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) | #318BFC | 0.045 |
| Deuteranopia (no green cones) | #007DF5 | 0.051 |
| Tritanopia (no blue cones) | #0098AE | 0.158 |
| Achromatopsia (no color) | #848484 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #587BF8
#587BF8
oklch(62.3% 0.19 268.6)
- #A68100
#A68100
oklch(62.1% 0.127 88.3)
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 #587BF8, closest first.
No curated palette has a color within ΔE 0.04 of #587BF8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.021
- Clear Blue #247AFD ΔE 0.042
- Soft Blue #6488EA ΔE 0.045
- Dodger Blue #1E90FF ΔE 0.059
- Medium Slate Blue #7B68EE ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.062
- Royal Blue #4169E1 ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.070
Use #587BF8 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.