#259588
Closest named color: Blue Green (#0F9B8E). oklch(60.6% 0.098 183.4), rgb(37, 149, 136).
Aa
Black text reads best on this color (5.73:1).
About this color
#259588 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.098 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Green (#0F9B8E), ΔE 0.017 away. Black text reads best on it, at 5.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Blue Green (#0F9B8E) |
| Black text | 5.73:1 |
| White text | 3.66:1 |
Values
| HEX | #259588 |
| RGB | rgb(37, 149, 136) |
| HSL | hsl(173, 60%, 36%) |
| OKLCH | oklch(60.6% 0.098 183.4) |
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 #259588 | 3.66:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #259588 | 5.73:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #259588 text on white | 3.66:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #259588 text on black | 5.73:1 | AA | Lc -37.8 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEB
oklch(93.6% 0.014 185.9)
-
Step 200
200
#C7DFDB
oklch(88.5% 0.026 184.7)
-
Step 300
300
#9FCBC4
oklch(80.9% 0.047 184.4)
-
Step 400
400
#66B1A5
oklch(70.8% 0.077 182.6)
-
Step 500
500 (this color)
#259588
oklch(60.6% 0.098 183.4)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#074C45
oklch(37.6% 0.064 184.1)
-
Step 950
950
#092D28
oklch(27% 0.041 182.1)
#259588 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) | #8E8C88 | 0.105 |
| Deuteranopia (no green cones) | #7E8189 | 0.098 |
| Tritanopia (no blue cones) | #009891 | 0.014 |
| Achromatopsia (no color) | #868686 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #259588
#259588
oklch(60.6% 0.098 183.4)
- #B3687C
#B3687C
oklch(60.6% 0.099 3.3)
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 #259588, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Green #0F9B8E ΔE 0.017
- Sea #3C9992 ΔE 0.024
- Persian Green #2A9D8F ΔE 0.024
- Teal Green #0A9396 ΔE 0.025
- Dusty Teal #4C9085 ΔE 0.027
- Dark Cyan #008B8B ΔE 0.036
- Ocean Green #3D9973 ΔE 0.038
- Viridian #1E9167 ΔE 0.048
Use #259588 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.