#405E5F
Closest named color: Dark Green Blue (#1F6357). oklch(45.9% 0.035 198.6), rgb(64, 94, 95).
Aa
White text reads best on this color (7.03:1).
About this color
#405E5F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.035 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.039 away. White text reads best on it, at 7.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #405E5F |
| RGB | rgb(64, 94, 95) |
| HSL | hsl(182, 19%, 31%) |
| OKLCH | oklch(45.9% 0.035 198.6) |
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 #405E5F | 7.03:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #405E5F | 2.98:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #405E5F text on white | 7.03:1 | AAA | Lc 84.3 | Fine for body text |
| #405E5F text on black | 2.98:1 | Fails | Lc -17.6 | 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
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D1DCDC
oklch(88.6% 0.012 196.9)
-
Step 300
300
#B2C5C5
oklch(80.9% 0.021 196.7)
-
Step 400
400
#89A7A8
oklch(70.6% 0.033 198.9)
-
Step 500
500
#6B9293
oklch(63.2% 0.043 198.1)
-
Step 600
600
#537C7D
oklch(55.7% 0.046 197.9)
-
Step 700
700
#43686A
oklch(49% 0.042 200.2)
-
Step 800
800 (this color)
#405E5F
oklch(45.9% 0.035 198.6)
-
Step 900
900
#304647
oklch(37.6% 0.027 199.6)
-
Step 950
950
#1C292A
oklch(26.9% 0.018 202.1)
#405E5F 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) | #5A5B5F | 0.037 |
| Deuteranopia (no green cones) | #54575F | 0.033 |
| Tritanopia (no blue cones) | #35605E | 0.014 |
| Achromatopsia (no color) | #595959 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405E5F
#405E5F
oklch(45.9% 0.035 198.6)
- #6A5050
#6A5050
oklch(45.9% 0.035 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 #405E5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.039
- Slate #516572 ΔE 0.043
- Petrol #005F6A ΔE 0.045
- YInMn Blue #415A77 ΔE 0.046
- Dark Aqua #05696B ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.056
- Dusty Grape #545775 ΔE 0.056
- Deep Teal #00555A ΔE 0.061
Use #405E5F 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.