#05455C
Closest named color: Dark Grey Blue (#29465B). oklch(36.6% 0.07 229.4), rgb(5, 69, 92).
Aa
White text reads best on this color (10.43:1).
About this color
#05455C is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.070 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.028 away. White text reads best on it, at 10.43:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.43:1 |
Values
| HEX | #05455C |
| RGB | rgb(5, 69, 92) |
| HSL | hsl(196, 90%, 19%) |
| OKLCH | oklch(36.6% 0.07 229.4) |
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 #05455C | 10.43:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #05455C | 2.01:1 | Fails | Lc 10.1 | Not readable |
| #05455C text on white | 10.43:1 | AAA | Lc 93.8 | Preferred for body text |
| #05455C text on black | 2.01:1 | Fails | Lc -8.7 | Not readable |
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 900.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DDE9
oklch(88.4% 0.03 230.3)
-
Step 300
300
#9EC8DC
oklch(80.9% 0.053 228.6)
-
Step 400
400
#66ABCB
oklch(70.8% 0.084 229.5)
-
Step 500
500
#3295BD
oklch(63.1% 0.107 229.3)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900 (this color)
#05455C
oklch(36.6% 0.07 229.4)
-
Step 950
950
#0A2A38
oklch(26.9% 0.045 230.7)
#05455C 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) | #39445D | 0.048 |
| Deuteranopia (no green cones) | #2E3C5C | 0.042 |
| Tritanopia (no blue cones) | #004B4D | 0.038 |
| Achromatopsia (no color) | #404040 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05455C
#05455C
oklch(36.6% 0.07 229.4)
- #5C321A
#5C321A
oklch(36.5% 0.071 49)
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 #05455C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.028
- Charcoal #264653 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.037
- Midnight Green #073B4C ΔE 0.039
- Dark Teal #014D4E ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.051
- Marine Blue #01386A ΔE 0.053
- Twilight Blue #0A437A ΔE 0.054
Use #05455C 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.