#589CBD
Closest named color: Greyblue (#77A1B5). oklch(66.1% 0.085 231), rgb(88, 156, 189).
Aa
Black text reads best on this color (6.90:1).
About this color
#589CBD is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.085 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.039 away. Black text reads best on it, at 6.90:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 6.90:1 |
| White text | 3.04:1 |
Values
| HEX | #589CBD |
| RGB | rgb(88, 156, 189) |
| HSL | hsl(200, 43%, 54%) |
| OKLCH | oklch(66.1% 0.085 231) |
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 #589CBD | 3.04:1 | AA large text | Lc -62.4 | Content text, not long reading |
| Black text on #589CBD | 6.90:1 | AA | Lc 47.0 | Large or bold text, headings |
| #589CBD text on white | 3.04:1 | AA large text | Lc 57.1 | Large or bold text, headings |
| #589CBD text on black | 6.90:1 | AA | Lc -44.7 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2EBF0
oklch(93.5% 0.012 231.7)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A6C6D7
oklch(80.9% 0.042 231.1)
-
Step 400
400
#75A9C3
oklch(70.8% 0.067 230.6)
-
Step 500
500 (this color)
#589CBD
oklch(66.1% 0.085 231)
-
Step 600
600
#2E7D9F
oklch(55.7% 0.092 230.3)
-
Step 700
700
#206988
oklch(49.1% 0.085 230.7)
-
Step 800
800
#1D566F
oklch(42.8% 0.071 230.8)
-
Step 900
900
#1F475A
oklch(37.8% 0.055 231.4)
-
Step 950
950
#132A34
oklch(27.1% 0.034 228.3)
#589CBD 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) | #8C9ABF | 0.059 |
| Deuteranopia (no green cones) | #7D8FBD | 0.052 |
| Tritanopia (no blue cones) | #12A5A7 | 0.062 |
| Achromatopsia (no color) | #949494 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #589CBD
#589CBD
oklch(66.1% 0.085 231)
- #BC8362
#BC8362
oklch(65.9% 0.084 50.8)
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 #589CBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.039
- Faded Blue #658CBB ΔE 0.045
- Cadet Blue #5F9EA0 ΔE 0.046
- Silver Lake Blue #778DA9 ΔE 0.051
- Blue Grey #758DA3 ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.058
- Bluey Grey #89A0B0 ΔE 0.060
- Dusty Blue #5A86AD ΔE 0.061
Use #589CBD 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.