#405F5C
Closest named color: Dark Green Blue (#1F6357). oklch(46% 0.037 188.4), rgb(64, 95, 92).
Aa
White text reads best on this color (6.97:1).
About this color
#405F5C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.037 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.035 away. White text reads best on it, at 6.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.00:1 |
| White text | 6.97:1 |
Values
| HEX | #405F5C |
| RGB | rgb(64, 95, 92) |
| HSL | hsl(174, 19%, 31%) |
| OKLCH | oklch(46% 0.037 188.4) |
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 #405F5C | 6.97:1 | AA | Lc -89.1 | Fine for body text |
| Black text on #405F5C | 3.00:1 | AA large text | Lc 19.9 | Dividers and decoration only |
| #405F5C text on white | 6.97:1 | AA | Lc 84.1 | Fine for body text |
| #405F5C text on black | 3.00:1 | AA large text | Lc -17.9 | 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
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DBDA
oklch(88.4% 0.01 189)
-
Step 300
300
#B4C4C3
oklch(80.8% 0.018 192.3)
-
Step 400
400
#8DA7A4
oklch(70.8% 0.029 188)
-
Step 500
500
#71918E
oklch(63.1% 0.036 189.2)
-
Step 600
600
#597B78
oklch(55.6% 0.039 189.3)
-
Step 700
700 (this color)
#405F5C
oklch(46% 0.037 188.4)
-
Step 800
800
#3C5552
oklch(42.8% 0.031 186.9)
-
Step 900
900
#334644
oklch(37.7% 0.024 188.2)
-
Step 950
950
#1E2928
oklch(27% 0.015 189.4)
#405F5C 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) | #5C5C5C | 0.039 |
| Deuteranopia (no green cones) | #56575C | 0.038 |
| Tritanopia (no blue cones) | #36615E | 0.012 |
| Achromatopsia (no color) | #595959 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405F5C
#405F5C
oklch(46% 0.037 188.4)
- #6B5054
#6B5054
oklch(46.1% 0.037 8.7)
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 #405F5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.035
- Slate #516572 ΔE 0.045
- Dark Aqua #05696B ΔE 0.045
- Petrol #005F6A ΔE 0.047
- YInMn Blue #415A77 ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.058
- Deep Teal #00555A ΔE 0.062
- Dusty Grape #545775 ΔE 0.062
Use #405F5C 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.