#258491
Closest named color: Teal Blue (#01889F). oklch(56.6% 0.087 208.4), rgb(37, 132, 145).
Aa
Black text reads best on this color (4.78:1).
About this color
#258491 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.087 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.022 away. Black text reads best on it, at 4.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.78:1 |
| White text | 4.38:1 |
Values
| HEX | #258491 |
| RGB | rgb(37, 132, 145) |
| HSL | hsl(187, 59%, 36%) |
| OKLCH | oklch(56.6% 0.087 208.4) |
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 #258491 | 4.38:1 | AA large text | Lc -75.6 | Fine for body text |
| Black text on #258491 | 4.78:1 | AA | Lc 34.0 | Non-text elements, placeholder text |
| #258491 text on white | 4.38:1 | AA large text | Lc 70.1 | Content text, not long reading |
| #258491 text on black | 4.78:1 | AA | Lc -31.6 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE1
oklch(88.5% 0.021 211.8)
-
Step 300
300
#A4C8CE
oklch(80.9% 0.039 208.8)
-
Step 400
400
#71ACB5
oklch(70.7% 0.062 208)
-
Step 500
500
#4797A3
oklch(63.1% 0.08 208.4)
-
Step 600
600 (this color)
#258491
oklch(56.6% 0.087 208.4)
-
Step 700
700
#106D79
oklch(49.1% 0.081 208.7)
-
Step 800
800
#135962
oklch(42.7% 0.067 207.9)
-
Step 900
900
#194950
oklch(37.6% 0.052 208.5)
-
Step 950
950
#112B2F
oklch(27% 0.033 208.6)
#258491 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) | #787F92 | 0.083 |
| Deuteranopia (no green cones) | #697491 | 0.075 |
| Tritanopia (no blue cones) | #008A88 | 0.028 |
| Achromatopsia (no color) | #787878 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #258491
#258491
oklch(56.6% 0.087 208.4)
- #A36259
#A36259
oklch(56.6% 0.086 28.5)
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 #258491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.022
- Dark Cyan #008B8B ΔE 0.027
- Teal #008080 ΔE 0.032
- Ocean #017B92 ΔE 0.032
- Cerulean #457B9D ΔE 0.043
- Teal Green #0A9396 ΔE 0.043
- Deep Aqua #08787F ΔE 0.045
- Bluegreen #017A79 ΔE 0.047
Use #258491 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.