#455B52
Closest named color: Dark Green Blue (#1F6357). oklch(45% 0.031 168), rgb(69, 91, 82).
Aa
White text reads best on this color (7.31:1).
About this color
#455B52 is a medium-dark, muted green. In OKLCH its lightness is 45%, its chroma 0.031 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.041 away. White text reads best on it, at 7.31:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.87:1 |
| White text | 7.31:1 |
Values
| HEX | #455B52 |
| RGB | rgb(69, 91, 82) |
| HSL | hsl(155, 14%, 31%) |
| OKLCH | oklch(45% 0.031 168) |
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 #455B52 | 7.31:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #455B52 | 2.87:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #455B52 text on white | 7.31:1 | AAA | Lc 85.4 | Fine for body text |
| #455B52 text on black | 2.87:1 | Fails | Lc -16.6 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE9
oklch(93.6% 0.005 165)
-
Step 200
200
#D3DBD8
oklch(88.4% 0.01 171.8)
-
Step 300
300
#B6C4BE
oklch(80.8% 0.017 168.4)
-
Step 400
400
#90A79D
oklch(70.8% 0.029 167.4)
-
Step 500
500
#759185
oklch(63.1% 0.036 167.3)
-
Step 600
600
#5D7B6F
oklch(55.6% 0.039 168.4)
-
Step 700
700
#4C685D
oklch(49.2% 0.037 168.6)
-
Step 800
800 (this color)
#455B52
oklch(45% 0.031 168)
-
Step 900
900
#35463F
oklch(37.7% 0.025 167.9)
-
Step 950
950
#1F2925
oklch(27% 0.016 168.8)
#455B52 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) | #5A5852 | 0.032 |
| Deuteranopia (no green cones) | #565553 | 0.030 |
| Tritanopia (no blue cones) | #405B58 | 0.011 |
| Achromatopsia (no color) | #565656 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455B52
#455B52
oklch(45% 0.031 168)
- #634F58
#634F58
oklch(45.1% 0.03 349.6)
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 #455B52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.050
- Petrol #005F6A ΔE 0.057
- Slate #516572 ΔE 0.057
- Dark Aqua #05696B ΔE 0.059
- Pine #2B5D34 ΔE 0.061
- YInMn Blue #415A77 ΔE 0.062
- Deep Teal #00555A ΔE 0.063
Use #455B52 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.