#405C5D
Closest named color: Dark Green Blue (#1F6357). oklch(45.3% 0.033 198.8), rgb(64, 92, 93).
Aa
White text reads best on this color (7.22:1).
About this color
#405C5D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.033 and its hue 199°. 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 7.22:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #405C5D |
| RGB | rgb(64, 92, 93) |
| HSL | hsl(182, 18%, 31%) |
| OKLCH | oklch(45.3% 0.033 198.8) |
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 #405C5D | 7.22:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #405C5D | 2.90:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #405C5D text on white | 7.22:1 | AAA | Lc 85.1 | Fine for body text |
| #405C5D text on black | 2.90:1 | Fails | Lc -17.0 | 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 800.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D1DBDC
oklch(88.4% 0.011 204.1)
-
Step 300
300
#B3C5C5
oklch(81% 0.02 196.8)
-
Step 400
400
#8BA7A8
oklch(70.8% 0.031 199.1)
-
Step 500
500
#6D9192
oklch(63% 0.04 198.3)
-
Step 600
600
#557B7D
oklch(55.5% 0.043 200.1)
-
Step 700
700
#456869
oklch(49.1% 0.04 198.2)
-
Step 800
800 (this color)
#405C5D
oklch(45.3% 0.033 198.8)
-
Step 900
900
#314647
oklch(37.7% 0.026 199.8)
-
Step 950
950
#1D2929
oklch(27% 0.017 196.2)
#405C5D 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) | #58595D | 0.034 |
| Deuteranopia (no green cones) | #53555D | 0.033 |
| Tritanopia (no blue cones) | #365E5C | 0.013 |
| Achromatopsia (no color) | #575757 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405C5D
#405C5D
oklch(45.3% 0.033 198.8)
- #684F4F
#684F4F
oklch(45.4% 0.034 18.5)
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 #405C5D, 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
- Petrol #005F6A ΔE 0.045
- YInMn Blue #415A77 ΔE 0.046
- Slate #516572 ΔE 0.047
- Dark Aqua #05696B ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.050
- Dusty Grape #545775 ΔE 0.056
- Deep Teal #00555A ΔE 0.057
Use #405C5D 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.