#455A4F
Closest named color: Dark Green Blue (#1F6357). oklch(44.7% 0.031 162), rgb(69, 90, 79).
Aa
White text reads best on this color (7.42:1).
About this color
#455A4F is a dark, muted green. In OKLCH its lightness is 45%, its chroma 0.031 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.042 away. White text reads best on it, at 7.42:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.82:1 |
| White text | 7.42:1 |
Values
| HEX | #455A4F |
| RGB | rgb(69, 90, 79) |
| HSL | hsl(149, 13%, 31%) |
| OKLCH | oklch(44.7% 0.031 162) |
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 #455A4F | 7.42:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #455A4F | 2.82:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #455A4F text on white | 7.42:1 | AAA | Lc 85.8 | Fine for body text |
| #455A4F text on black | 2.82:1 | Fails | Lc -16.2 | 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
#D4DBD7
oklch(88.5% 0.009 161.3)
-
Step 300
300
#B7C4BD
oklch(80.8% 0.017 162.6)
-
Step 400
400
#91A79B
oklch(70.8% 0.03 161.7)
-
Step 500
500
#769183
oklch(63.2% 0.037 162.6)
-
Step 600
600
#5E7B6C
oklch(55.6% 0.041 162.2)
-
Step 700
700
#4E685A
oklch(49.2% 0.038 161.1)
-
Step 800
800 (this color)
#455A4F
oklch(44.7% 0.031 162)
-
Step 900
900
#36463E
oklch(37.8% 0.025 163.3)
-
Step 950
950
#202924
oklch(27% 0.016 160.8)
#455A4F 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) | #59574E | 0.030 |
| Deuteranopia (no green cones) | #565450 | 0.031 |
| Tritanopia (no blue cones) | #415A57 | 0.013 |
| Achromatopsia (no color) | #555555 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455A4F
#455A4F
oklch(44.7% 0.031 162)
- #614E59
#614E59
oklch(44.7% 0.03 342.8)
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 #455A4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.048
- Pine #2B5D34 ΔE 0.058
- Petrol #005F6A ΔE 0.059
- Slate #516572 ΔE 0.062
- Deep Teal #00555A ΔE 0.062
- Dark Aqua #05696B ΔE 0.062
- YInMn Blue #415A77 ΔE 0.066
Use #455A4F 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.