#455B4D
Closest named color: Dark Green Blue (#1F6357). oklch(44.9% 0.035 156.8), rgb(69, 91, 77).
Aa
White text reads best on this color (7.35:1).
About this color
#455B4D is a dark, muted green. In OKLCH its lightness is 45%, its chroma 0.035 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.040 away. White text reads best on it, at 7.35:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #455B4D |
| RGB | rgb(69, 91, 77) |
| HSL | hsl(142, 14%, 31%) |
| OKLCH | oklch(44.9% 0.035 156.8) |
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 #455B4D | 7.35:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #455B4D | 2.85:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #455B4D text on white | 7.35:1 | AAA | Lc 85.5 | Fine for body text |
| #455B4D text on black | 2.85:1 | Fails | Lc -16.5 | 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
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D3DBD6
oklch(88.4% 0.011 158.8)
-
Step 300
300
#B6C5BB
oklch(80.9% 0.021 156.7)
-
Step 400
400
#91A798
oklch(70.7% 0.033 155.7)
-
Step 500
500
#75917F
oklch(63% 0.042 156.8)
-
Step 600
600
#5D7C69
oklch(55.7% 0.046 157.6)
-
Step 700
700
#4D6857
oklch(49% 0.042 156.9)
-
Step 800
800 (this color)
#455B4D
oklch(44.9% 0.035 156.8)
-
Step 900
900
#36463C
oklch(37.7% 0.027 157.4)
-
Step 950
950
#202923
oklch(27% 0.017 155.9)
#455B4D 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) | #5B574C | 0.034 |
| Deuteranopia (no green cones) | #57554E | 0.032 |
| Tritanopia (no blue cones) | #415B57 | 0.016 |
| Achromatopsia (no color) | #565656 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455B4D
#455B4D
oklch(44.9% 0.035 156.8)
- #624E5C
#624E5C
oklch(44.9% 0.034 337.2)
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 #455B4D, 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
- Dark Slate Gray #2F4F4F ΔE 0.052
- Pine #2B5D34 ΔE 0.054
- Petrol #005F6A ΔE 0.061
- Dark Aqua #05696B ΔE 0.062
- Slate #516572 ΔE 0.064
- Deep Teal #00555A ΔE 0.065
- Spruce #0A5F38 ΔE 0.067
Use #455B4D 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.