#258E9D
Closest named color: Teal Green (#0A9396). oklch(59.6% 0.093 209.2), rgb(37, 142, 157).
Aa
Black text reads best on this color (5.43:1).
About this color
#258E9D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.093 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.022 away. Black text reads best on it, at 5.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.43:1 |
| White text | 3.86:1 |
Values
| HEX | #258E9D |
| RGB | rgb(37, 142, 157) |
| HSL | hsl(188, 62%, 38%) |
| OKLCH | oklch(59.6% 0.093 209.2) |
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 #258E9D | 3.86:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #258E9D | 5.43:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #258E9D text on white | 3.86:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #258E9D text on black | 5.43:1 | AA | Lc -35.9 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECEF
oklch(93.5% 0.013 214.4)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#9FC9D1
oklch(80.8% 0.046 210.5)
-
Step 400
400
#67ADB9
oklch(70.6% 0.073 209.6)
-
Step 500
500 (this color)
#258E9D
oklch(59.6% 0.093 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#0B4A53
oklch(37.6% 0.061 209.7)
-
Step 950
950
#0B2C31
oklch(27.2% 0.039 209.1)
#258E9D 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) | #81899E | 0.089 |
| Deuteranopia (no green cones) | #707C9D | 0.081 |
| Tritanopia (no blue cones) | #009592 | 0.032 |
| Achromatopsia (no color) | #828282 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #258E9D
#258E9D
oklch(59.6% 0.093 209.2)
- #B0695E
#B0695E
oklch(59.6% 0.093 29.5)
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 #258E9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.022
- Teal Blue #01889F ΔE 0.023
- Dark Cyan #008B8B ΔE 0.031
- Blue NCS #118AB2 ΔE 0.038
- Sea #3C9992 ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.045
- Blue Green #0F9B8E ΔE 0.052
- Persian Green #2A9D8F ΔE 0.056
Use #258E9D 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.