#589BBE
Closest named color: Greyblue (#77A1B5). oklch(65.9% 0.086 232.9), rgb(88, 155, 190).
Aa
Black text reads best on this color (6.84:1).
About this color
#589BBE is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.086 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.042 away. Black text reads best on it, at 6.84:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 6.84:1 |
| White text | 3.06:1 |
Values
| HEX | #589BBE |
| RGB | rgb(88, 155, 190) |
| HSL | hsl(201, 44%, 55%) |
| OKLCH | oklch(65.9% 0.086 232.9) |
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 #589BBE | 3.06:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #589BBE | 6.84:1 | AA | Lc 46.7 | Large or bold text, headings |
| #589BBE text on white | 3.06:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #589BBE text on black | 6.84:1 | AA | Lc -44.4 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D8
oklch(81% 0.042 233.5)
-
Step 400
400
#76A8C4
oklch(70.6% 0.067 233.5)
-
Step 500
500 (this color)
#589BBE
oklch(65.9% 0.086 232.9)
-
Step 600
600
#2F7CA1
oklch(55.5% 0.094 233)
-
Step 700
700
#21698A
oklch(49.2% 0.087 232.6)
-
Step 800
800
#1E5570
oklch(42.6% 0.072 233.6)
-
Step 900
900
#1F475A
oklch(37.8% 0.055 231.4)
-
Step 950
950
#132935
oklch(26.9% 0.036 234.1)
#589BBE 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) | #8A99C0 | 0.057 |
| Deuteranopia (no green cones) | #7C8EBD | 0.050 |
| Tritanopia (no blue cones) | #10A4A6 | 0.065 |
| Achromatopsia (no color) | #939393 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #589BBE
#589BBE
oklch(65.9% 0.086 232.9)
- #BC835F
#BC835F
oklch(65.9% 0.087 52.9)
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 #589BBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.042
- Faded Blue #658CBB ΔE 0.042
- Cadet Blue #5F9EA0 ΔE 0.049
- Silver Lake Blue #778DA9 ΔE 0.050
- Blue Grey #758DA3 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.060
- Bluey Grey #89A0B0 ΔE 0.062
Use #589BBE 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.