#259B87
Closest named color: Blue Green (#0F9B8E). oklch(62.2% 0.105 178.3), rgb(37, 155, 135).
Aa
Black text reads best on this color (6.11:1).
About this color
#259B87 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.105 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Green (#0F9B8E), ΔE 0.011 away. Black text reads best on it, at 6.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Blue Green (#0F9B8E) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #259B87 |
| RGB | rgb(37, 155, 135) |
| HSL | hsl(170, 61%, 38%) |
| OKLCH | oklch(62.2% 0.105 178.3) |
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 #259B87 | 3.43:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #259B87 | 6.11:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #259B87 text on white | 3.43:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #259B87 text on black | 6.11:1 | AA | Lc -40.2 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C6E0D9
oklch(88.6% 0.029 177.6)
-
Step 300
300
#9ECCC1
oklch(80.9% 0.051 178.7)
-
Step 400
400
#63B2A1
oklch(70.8% 0.083 178.2)
-
Step 500
500 (this color)
#259B87
oklch(62.2% 0.105 178.3)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#024D42
oklch(37.7% 0.068 178.9)
-
Step 950
950
#082D27
oklch(26.9% 0.043 179.9)
#259B87 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) | #949186 | 0.110 |
| Deuteranopia (no green cones) | #858689 | 0.105 |
| Tritanopia (no blue cones) | #009D95 | 0.020 |
| Achromatopsia (no color) | #8A8A8A | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #259B87
#259B87
oklch(62.2% 0.105 178.3)
- #B96B86
#B96B86
oklch(62.2% 0.104 358.4)
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 #259B87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Green #0F9B8E ΔE 0.011
- Persian Green #2A9D8F ΔE 0.013
- Sea #3C9992 ΔE 0.024
- Ocean Green #3D9973 ΔE 0.028
- Dusty Teal #4C9085 ΔE 0.037
- Teal Green #0A9396 ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.042
- Dull Teal #5F9E8F ΔE 0.047
Use #259B87 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.