#051027
Closest named color: Rich Navy (#001219). oklch(17.8% 0.05 261.9), rgb(5, 16, 39).
Aa
White text reads best on this color (18.92:1).
About this color
#051027 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.050 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.034 away. White text reads best on it, at 18.92:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 18.92:1 |
Values
| HEX | #051027 |
| RGB | rgb(5, 16, 39) |
| HSL | hsl(221, 77%, 9%) |
| OKLCH | oklch(17.8% 0.05 261.9) |
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 #051027 | 18.92:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #051027 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #051027 text on white | 18.92:1 | AAA | Lc 105.3 | Preferred for body text |
| #051027 text on black | 1.10:1 | 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 950.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ACC1E8
oklch(80.8% 0.06 262.8)
-
Step 400
400
#80A1DD
oklch(70.8% 0.096 262)
-
Step 500
500
#6088D3
oklch(63.1% 0.122 262.1)
-
Step 600
600
#4671C0
oklch(55.6% 0.132 261.5)
-
Step 700
700
#385EA6
oklch(49.1% 0.123 261.9)
-
Step 800
800
#2F4D86
oklch(42.7% 0.101 262)
-
Step 900
900
#29416C
oklch(37.8% 0.08 261.3)
-
Step 950
950 (this color)
#051027
oklch(17.8% 0.05 261.9)
#051027 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) | #051228 | 0.007 |
| Deuteranopia (no green cones) | #010F27 | 0.009 |
| Tritanopia (no blue cones) | #001519 | 0.040 |
| Achromatopsia (no color) | #111111 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051027
#051027
oklch(17.8% 0.05 261.9)
- #190F00
#190F00
oklch(17.7% 0.037 81.6)
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 #051027, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.034
- Rich Black #0D1B2A ΔE 0.043
- Dark Navy #000435 ΔE 0.049
- Dark Navy Blue #00022E ΔE 0.053
- Midnight #03012D ΔE 0.053
- Almost Black #070D0D ΔE 0.054
- Very Dark Blue #000133 ΔE 0.057
- Navy Blue #001146 ΔE 0.061
Use #051027 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.