#587EEA
Closest named color: Soft Blue (#6488EA). oklch(61.9% 0.168 266.9), rgb(88, 126, 234).
Aa
Black text reads best on this color (5.58:1).
About this color
#587EEA is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.168 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.031 away. Black text reads best on it, at 5.58:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #587EEA |
| RGB | rgb(88, 126, 234) |
| HSL | hsl(224, 78%, 63%) |
| OKLCH | oklch(61.9% 0.168 266.9) |
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 #587EEA | 3.75:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #587EEA | 5.58:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #587EEA text on white | 3.75:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #587EEA text on black | 5.58:1 | AA | Lc -36.8 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A9C0F7
oklch(81% 0.082 266.9)
-
Step 400
400
#7B9DF3
oklch(70.7% 0.132 266.7)
-
Step 500
500 (this color)
#587EEA
oklch(61.9% 0.168 266.9)
-
Step 600
600
#4368DD
oklch(55.6% 0.184 267)
-
Step 700
700
#3556BF
oklch(49.1% 0.169 266.8)
-
Step 800
800
#2C479B
oklch(42.7% 0.141 266.9)
-
Step 900
900
#273D7B
oklch(37.8% 0.109 266.5)
-
Step 950
950
#172448
oklch(27% 0.069 266.8)
#587EEA 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) | #498BEE | 0.034 |
| Deuteranopia (no green cones) | #2E7DE8 | 0.037 |
| Tritanopia (no blue cones) | #0097A9 | 0.142 |
| Achromatopsia (no color) | #848484 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #587EEA
#587EEA
oklch(61.9% 0.168 266.9)
- #A78000
#A78000
oklch(62% 0.127 87.1)
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 #587EEA, closest first.
No curated palette has a color within ΔE 0.04 of #587EEA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.031
- Cornflower #6A79F7 ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.046
- Clear Blue #247AFD ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.059
- Royal Blue #4169E1 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.063
Use #587EEA 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.