#59A2EF
Closest named color: Cornflower Blue (#6495ED). oklch(69.9% 0.135 251.4), rgb(89, 162, 239).
Aa
Black text reads best on this color (7.83:1).
About this color
#59A2EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.135 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.034 away. Black text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.83:1 |
| White text | 2.67:1 |
Values
| HEX | #59A2EF |
| RGB | rgb(89, 162, 239) |
| HSL | hsl(211, 82%, 64%) |
| OKLCH | oklch(69.9% 0.135 251.4) |
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 #59A2EF | 2.67:1 | Fails | Lc -57.0 | Large or bold text, headings |
| Black text on #59A2EF | 7.83:1 | AAA | Lc 52.2 | Large or bold text, headings |
| #59A2EF text on white | 2.67:1 | Fails | Lc 51.8 | Large or bold text, headings |
| #59A2EF text on black | 7.83:1 | AAA | Lc -50.1 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEEBFA
oklch(93.5% 0.025 251.9)
-
Step 200
200
#C3DCF8
oklch(88.5% 0.047 251.3)
-
Step 300
300
#98C5F6
oklch(80.9% 0.085 251)
-
Step 400
400 (this color)
#59A2EF
oklch(69.9% 0.135 251.4)
-
Step 500
500
#1F8BED
oklch(63% 0.173 251.6)
-
Step 600
600
#0074CF
oklch(55.5% 0.165 251.7)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950
#052748
oklch(27% 0.072 251.7)
#59A2EF 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) | #81A6F2 | 0.044 |
| Deuteranopia (no green cones) | #6C98ED | 0.029 |
| Tritanopia (no blue cones) | #00B4BE | 0.108 |
| Achromatopsia (no color) | #9E9E9E | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59A2EF
#59A2EF
oklch(69.9% 0.135 251.4)
- #D28E2B
#D28E2B
oklch(69.9% 0.136 71.3)
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 #59A2EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.060
- Periwinkle Blue #8F99FB ΔE 0.066
- Soft Blue #6488EA ΔE 0.067
- Dodger Blue #1E90FF ΔE 0.072
- Perrywinkle #8F8CE7 ΔE 0.077
- Deep Sky Blue #00BFFF ΔE 0.078
Use #59A2EF 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.