#425F5F
Closest named color: Dark Green Blue (#1F6357). oklch(46.3% 0.034 196), rgb(66, 95, 95).
Aa
White text reads best on this color (6.92:1).
About this color
#425F5F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.034 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.040 away. White text reads best on it, at 6.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.03:1 |
| White text | 6.92:1 |
Values
| HEX | #425F5F |
| RGB | rgb(66, 95, 95) |
| HSL | hsl(180, 18%, 32%) |
| OKLCH | oklch(46.3% 0.034 196) |
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 #425F5F | 6.92:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #425F5F | 3.03:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #425F5F text on white | 6.92:1 | AA | Lc 83.9 | Fine for body text |
| #425F5F text on black | 3.03:1 | AA large text | Lc -18.1 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D3DBDB
oklch(88.5% 0.009 197)
-
Step 300
300
#B5C4C4
oklch(80.9% 0.016 196.8)
-
Step 400
400
#8EA6A6
oklch(70.7% 0.027 196.6)
-
Step 500
500
#729090
oklch(63% 0.034 196.3)
-
Step 600
600
#5A7A7A
oklch(55.5% 0.037 196.1)
-
Step 700
700 (this color)
#425F5F
oklch(46.3% 0.034 196)
-
Step 800
800
#3D5454
oklch(42.7% 0.028 196.2)
-
Step 900
900
#344545
oklch(37.6% 0.022 196.3)
-
Step 950
950
#1F2929
oklch(27.1% 0.014 196.4)
#425F5F 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) | #5B5C5F | 0.035 |
| Deuteranopia (no green cones) | #56585F | 0.034 |
| Tritanopia (no blue cones) | #38615F | 0.012 |
| Achromatopsia (no color) | #5A5A5A | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425F5F
#425F5F
oklch(46.3% 0.034 196)
- #6B5152
#6B5152
oklch(46.2% 0.035 15.9)
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 #425F5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.040
- Slate #516572 ΔE 0.040
- Dark Aqua #05696B ΔE 0.046
- YInMn Blue #415A77 ΔE 0.047
- Petrol #005F6A ΔE 0.047
- Dusty Grape #545775 ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.060
- Deep Teal #00555A ΔE 0.064
Use #425F5F 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.