#589FC9
Closest named color: Greyblue (#77A1B5). oklch(67.3% 0.095 236.5), rgb(88, 159, 201).
Aa
Black text reads best on this color (7.21:1).
About this color
#589FC9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.095 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.044 away. Black text reads best on it, at 7.21:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.21:1 |
| White text | 2.90:1 |
Values
| HEX | #589FC9 |
| RGB | rgb(88, 159, 201) |
| HSL | hsl(202, 51%, 57%) |
| OKLCH | oklch(67.3% 0.095 236.5) |
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 #589FC9 | 2.90:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #589FC9 | 7.21:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #589FC9 text on white | 2.90:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #589FC9 text on black | 7.21:1 | AAA | Lc -46.5 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C5DDEC
oklch(88.4% 0.033 235.2)
-
Step 300
300
#9DC7E2
oklch(80.9% 0.059 236.7)
-
Step 400
400 (this color)
#589FC9
oklch(67.3% 0.095 236.5)
-
Step 500
500
#2C93C9
oklch(63% 0.122 236.9)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#054766
oklch(37.7% 0.079 236.7)
-
Step 950
950
#082A3C
oklch(27.1% 0.051 236.4)
#589FC9 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) | #8B9ECB | 0.057 |
| Deuteranopia (no green cones) | #7C92C8 | 0.049 |
| Tritanopia (no blue cones) | #00AAAD | 0.073 |
| Achromatopsia (no color) | #979797 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #589FC9
#589FC9
oklch(67.3% 0.095 236.5)
- #C3875B
#C3875B
oklch(67.4% 0.095 56.6)
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 #589FC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.044
- Faded Blue #658CBB ΔE 0.052
- Bluegrey #85A3B2 ΔE 0.061
- Cadet Blue #5F9EA0 ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.061
- Silver Lake Blue #778DA9 ΔE 0.062
- Bluey Grey #89A0B0 ΔE 0.063
- Cool Gray #8D99AE ΔE 0.066
Use #589FC9 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.