#59A6CB
Closest named color: Greyblue (#77A1B5). oklch(69% 0.094 231.1), rgb(89, 166, 203).
Aa
Black text reads best on this color (7.74:1).
About this color
#59A6CB is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.094 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.040 away. Black text reads best on it, at 7.74:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.74:1 |
| White text | 2.71:1 |
Values
| HEX | #59A6CB |
| RGB | rgb(89, 166, 203) |
| HSL | hsl(199, 52%, 57%) |
| OKLCH | oklch(69% 0.094 231.1) |
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 #59A6CB | 2.71:1 | Fails | Lc -57.6 | Large or bold text, headings |
| Black text on #59A6CB | 7.74:1 | AAA | Lc 51.6 | Large or bold text, headings |
| #59A6CB text on white | 2.71:1 | Fails | Lc 52.4 | Large or bold text, headings |
| #59A6CB text on black | 7.74:1 | AAA | Lc -49.5 | 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C5DEEB
oklch(88.6% 0.032 230.3)
-
Step 300
300
#9BC8E0
oklch(80.9% 0.058 231.7)
-
Step 400
400 (this color)
#59A6CB
oklch(69% 0.094 231.1)
-
Step 500
500
#1F95C4
oklch(63% 0.119 231.2)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950
#052A3A
oklch(26.8% 0.05 231.7)
#59A6CB 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) | #94A4CD | 0.065 |
| Deuteranopia (no green cones) | #8398CA | 0.055 |
| Tritanopia (no blue cones) | #00B0B2 | 0.067 |
| Achromatopsia (no color) | #9D9D9D | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59A6CB
#59A6CB
oklch(69% 0.094 231.1)
- #CA8B65
#CA8B65
oklch(69.1% 0.093 51.7)
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 #59A6CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.040
- Turquoise Blue #06B1C4 ΔE 0.049
- Bluegrey #85A3B2 ΔE 0.054
- Bluey Grey #89A0B0 ΔE 0.059
- Cadet Blue #5F9EA0 ΔE 0.062
- Cool Gray #8D99AE ΔE 0.067
- Faded Blue #658CBB ΔE 0.070
- Cool Steel #97A7B3 ΔE 0.075
Use #59A6CB 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.