#587EEC
Closest named color: Cornflower (#6A79F7). oklch(62% 0.171 267), rgb(88, 126, 236).
Aa
Black text reads best on this color (5.61:1).
About this color
#587EEC is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.171 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.030 away. Black text reads best on it, at 5.61:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.61:1 |
| White text | 3.74:1 |
Values
| HEX | #587EEC |
| RGB | rgb(88, 126, 236) |
| HSL | hsl(225, 80%, 64%) |
| OKLCH | oklch(62% 0.171 267) |
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 #587EEC | 3.74:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #587EEC | 5.61:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #587EEC text on white | 3.74:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #587EEC text on black | 5.61:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300
#A8C0F8
oklch(81% 0.084 266.5)
-
Step 400
400
#7B9DF4
oklch(70.8% 0.133 266.8)
-
Step 500
500 (this color)
#587EEC
oklch(62% 0.171 267)
-
Step 600
600
#4368DE
oklch(55.7% 0.185 267)
-
Step 700
700
#3555C1
oklch(49% 0.173 267.2)
-
Step 800
800
#2C479C
oklch(42.8% 0.142 266.9)
-
Step 900
900
#273C7C
oklch(37.6% 0.112 267.2)
-
Step 950
950
#172449
oklch(27.1% 0.071 267.1)
#587EEC 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) | #478BF0 | 0.034 |
| Deuteranopia (no green cones) | #2B7EEA | 0.038 |
| Tritanopia (no blue cones) | #0097AA | 0.143 |
| Achromatopsia (no color) | #848484 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #587EEC
#587EEC
oklch(62% 0.171 267)
- #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 #587EEC, closest first.
No curated palette has a color within ΔE 0.04 of #587EEC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.030
- Soft Blue #6488EA ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.047
- Clear Blue #247AFD ΔE 0.050
- Dodger Blue #1E90FF ΔE 0.057
- Chefchaouen Blue #4895EF ΔE 0.059
- Royal Blue #4169E1 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.064
Use #587EEC 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.