#063E55
Closest named color: Midnight Green (#073B4C). oklch(34.3% 0.066 232.2), rgb(6, 62, 85).
Aa
White text reads best on this color (11.48:1).
About this color
#063E55 is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.066 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.017 away. White text reads best on it, at 11.48:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.82:1 |
| White text | 11.48:1 |
Values
| HEX | #063E55 |
| RGB | rgb(6, 62, 85) |
| HSL | hsl(197, 87%, 18%) |
| OKLCH | oklch(34.3% 0.066 232.2) |
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 #063E55 | 11.48:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #063E55 | 1.82:1 | Fails | Lc 7.8 | Not readable |
| #063E55 text on white | 11.48:1 | AAA | Lc 96.1 | Preferred for body text |
| #063E55 text on black | 1.82:1 | Fails | Lc 0.0 | 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
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE9
oklch(88.6% 0.028 232.7)
-
Step 300
300
#A1C7DC
oklch(80.9% 0.05 232.4)
-
Step 400
400
#6BAACA
oklch(70.8% 0.08 231.6)
-
Step 500
500
#3E94BD
oklch(63.2% 0.102 232.4)
-
Step 600
600
#0D7DA9
oklch(55.5% 0.111 232.7)
-
Step 700
700
#006A90
oklch(49.2% 0.1 232)
-
Step 800
800
#055675
oklch(42.6% 0.085 232)
-
Step 900
900 (this color)
#063E55
oklch(34.3% 0.066 232.2)
-
Step 950
950
#0E2A37
oklch(27% 0.041 231.2)
#063E55 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) | #323D56 | 0.042 |
| Deuteranopia (no green cones) | #283655 | 0.037 |
| Tritanopia (no blue cones) | #004446 | 0.038 |
| Achromatopsia (no color) | #393939 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #063E55
#063E55
oklch(34.3% 0.066 232.2)
- #532E15
#532E15
oklch(34.3% 0.066 52.7)
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 #063E55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.017
- Dark Blue Grey #1F3B4D ΔE 0.021
- Prussian Blue #1D3557 ΔE 0.033
- Charcoal #264653 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.043
- Marine Blue #01386A ΔE 0.045
- Gunmetal #293241 ΔE 0.051
- Onyx #343A40 ΔE 0.054
Use #063E55 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.