#59A8DC
Closest named color: Greyblue (#77A1B5). oklch(70.3% 0.109 239.7), rgb(89, 168, 220).
Aa
Black text reads best on this color (8.05:1).
About this color
#59A8DC is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.109 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.059 away. Black text reads best on it, at 8.05:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.05:1 |
| White text | 2.60:1 |
Values
| HEX | #59A8DC |
| RGB | rgb(89, 168, 220) |
| HSL | hsl(204, 65%, 61%) |
| OKLCH | oklch(70.3% 0.109 239.7) |
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 #59A8DC | 2.60:1 | Fails | Lc -55.8 | Large or bold text, headings |
| Black text on #59A8DC | 8.05:1 | AAA | Lc 53.3 | Large or bold text, headings |
| #59A8DC text on white | 2.60:1 | Fails | Lc 50.7 | Large or bold text, headings |
| #59A8DC text on black | 8.05:1 | AAA | Lc -51.3 | 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
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C3DDF0
oklch(88.4% 0.038 239.6)
-
Step 300
300
#99C7E9
oklch(80.9% 0.068 240.7)
-
Step 400
400 (this color)
#59A8DC
oklch(70.3% 0.109 239.7)
-
Step 500
500
#1393D4
oklch(63.2% 0.139 239.3)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#042A3F
oklch(27.1% 0.056 238.5)
#59A8DC 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) | #90A8DE | 0.059 |
| Deuteranopia (no green cones) | #7F9ADB | 0.051 |
| Tritanopia (no blue cones) | #00B5BA | 0.081 |
| Achromatopsia (no color) | #A0A0A0 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59A8DC
#59A8DC
oklch(70.3% 0.109 239.7)
- #D18E56
#D18E56
oklch(70.2% 0.109 59.5)
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 #59A8DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.059
- Turquoise Blue #06B1C4 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.068
- Bluegrey #85A3B2 ΔE 0.070
- Deep Sky Blue #00BFFF ΔE 0.071
- Bluey Grey #89A0B0 ΔE 0.075
- Faded Blue #658CBB ΔE 0.080
Use #59A8DC 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.