#25839F
Closest named color: Teal Blue (#01889F). oklch(56.9% 0.094 222.5), rgb(37, 131, 159).
Aa
Black text reads best on this color (4.82:1).
About this color
#25839F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.094 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.017 away. Black text reads best on it, at 4.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #25839F |
| RGB | rgb(37, 131, 159) |
| HSL | hsl(194, 62%, 38%) |
| OKLCH | oklch(56.9% 0.094 222.5) |
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 #25839F | 4.35:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #25839F | 4.82:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #25839F text on white | 4.35:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #25839F text on black | 4.82:1 | AA | Lc -31.9 | 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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C7D5
oklch(80.9% 0.042 224.1)
-
Step 400
400
#70AABF
oklch(70.6% 0.068 222.8)
-
Step 500
500
#4695AF
oklch(63.1% 0.086 222.4)
-
Step 600
600 (this color)
#25839F
oklch(56.9% 0.094 222.5)
-
Step 700
700
#0E6B84
oklch(49.1% 0.087 222.3)
-
Step 800
800
#12576B
oklch(42.6% 0.072 222.4)
-
Step 900
900
#194857
oklch(37.7% 0.056 222.5)
-
Step 950
950
#102A33
oklch(26.9% 0.036 223.3)
#25839F 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) | #7380A0 | 0.075 |
| Deuteranopia (no green cones) | #62749F | 0.066 |
| Tritanopia (no blue cones) | #008C8C | 0.048 |
| Achromatopsia (no color) | #797979 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25839F
#25839F
oklch(56.9% 0.094 222.5)
- #A56449
#A56449
oklch(56.9% 0.093 43.1)
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 #25839F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.017
- Cerulean #457B9D ΔE 0.030
- Blue NCS #118AB2 ΔE 0.031
- Ocean #017B92 ΔE 0.033
- Stormy Blue #507B9C ΔE 0.037
- Steel Blue #4682B4 ΔE 0.044
- Nice Blue #107AB0 ΔE 0.044
- Dull Blue #49759C ΔE 0.045
Use #25839F 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.