#59A9DA
Closest named color: Greyblue (#77A1B5). oklch(70.4% 0.107 237.8), rgb(89, 169, 218).
Aa
Black text reads best on this color (8.11:1).
About this color
#59A9DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.107 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.057 away. Black text reads best on it, at 8.11:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.11:1 |
| White text | 2.58:1 |
Values
| HEX | #59A9DA |
| RGB | rgb(89, 169, 218) |
| HSL | hsl(203, 64%, 60%) |
| OKLCH | oklch(70.4% 0.107 237.8) |
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 #59A9DA | 2.58:1 | Fails | Lc -55.5 | Large or bold text, headings |
| Black text on #59A9DA | 8.11:1 | AAA | Lc 53.6 | Large or bold text, headings |
| #59A9DA text on white | 2.58:1 | Fails | Lc 50.4 | Large or bold text, headings |
| #59A9DA text on black | 8.11:1 | AAA | Lc -51.5 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C3DDEF
oklch(88.4% 0.037 238.1)
-
Step 300
300
#98C8E7
oklch(81% 0.067 237)
-
Step 400
400 (this color)
#59A9DA
oklch(70.4% 0.107 237.8)
-
Step 500
500
#1093D1
oklch(63% 0.136 237.9)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#032A3E
oklch(27% 0.056 236.7)
#59A9DA 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) | #92A8DC | 0.061 |
| Deuteranopia (no green cones) | #819BD9 | 0.052 |
| Tritanopia (no blue cones) | #00B6B9 | 0.080 |
| Achromatopsia (no color) | #A1A1A1 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59A9DA
#59A9DA
oklch(70.4% 0.107 237.8)
- #D18E5A
#D18E5A
oklch(70.3% 0.106 57.7)
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 #59A9DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.057
- Turquoise Blue #06B1C4 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.068
- Cornflower Blue #6495ED ΔE 0.068
- Deep Sky Blue #00BFFF ΔE 0.071
- Bluey Grey #89A0B0 ΔE 0.072
- Chefchaouen Blue #4895EF ΔE 0.072
- Cool Gray #8D99AE ΔE 0.080
Use #59A9DA 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.