#25645B
Closest named color: Dark Green Blue (#1F6357). oklch(46% 0.066 182.4), rgb(37, 100, 91).
Aa
White text reads best on this color (6.87:1).
About this color
#25645B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.066 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.009 away. White text reads best on it, at 6.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.05:1 |
| White text | 6.87:1 |
Values
| HEX | #25645B |
| RGB | rgb(37, 100, 91) |
| HSL | hsl(171, 46%, 27%) |
| OKLCH | oklch(46% 0.066 182.4) |
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 #25645B | 6.87:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #25645B | 3.05:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #25645B text on white | 6.87:1 | AA | Lc 83.6 | Fine for body text |
| #25645B text on black | 3.05:1 | AA large text | Lc -18.4 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CDDDDA
oklch(88.5% 0.018 183.5)
-
Step 300
300
#ABC8C2
oklch(81% 0.032 181.6)
-
Step 400
400
#7DABA3
oklch(70.6% 0.051 182.9)
-
Step 500
500
#5A978D
oklch(63.2% 0.066 182.5)
-
Step 600
600
#3E8177
oklch(55.6% 0.07 182.7)
-
Step 700
700 (this color)
#25645B
oklch(46% 0.066 182.4)
-
Step 800
800
#285951
oklch(42.7% 0.055 181.5)
-
Step 900
900
#264943
oklch(37.7% 0.042 181.6)
-
Step 950
950
#172B27
oklch(27.1% 0.027 180)
#25645B 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) | #5F5E5B | 0.070 |
| Deuteranopia (no green cones) | #56575C | 0.067 |
| Tritanopia (no blue cones) | #006661 | 0.016 |
| Achromatopsia (no color) | #5A5A5A | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25645B
#25645B
oklch(46% 0.066 182.4)
- #774855
#774855
oklch(46% 0.066 2.1)
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 #25645B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.009
- Dark Aqua #05696B ΔE 0.026
- Petrol #005F6A ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.049
- Deep Turquoise #017374 ΔE 0.051
- Deep Teal #00555A ΔE 0.056
- Pine #2B5D34 ΔE 0.056
- Spruce #0A5F38 ΔE 0.058
Use #25645B 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.