#054F70
Closest named color: Deep Sea Blue (#015482). oklch(40.4% 0.084 235.8), rgb(5, 79, 112).
Aa
White text reads best on this color (8.90:1).
About this color
#054F70 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.031 away. White text reads best on it, at 8.90:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #054F70 |
| RGB | rgb(5, 79, 112) |
| HSL | hsl(199, 91%, 23%) |
| OKLCH | oklch(40.4% 0.084 235.8) |
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 #054F70 | 8.90:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #054F70 | 2.35:1 | Fails | Lc 14.0 | Not readable |
| #054F70 text on white | 8.90:1 | AAA | Lc 89.9 | Fine for body text |
| #054F70 text on black | 2.35:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A3C6DD
oklch(80.9% 0.05 237)
-
Step 400
400
#6FA9CB
oklch(70.8% 0.078 235.2)
-
Step 500
500
#4493BE
oklch(63.2% 0.101 235.3)
-
Step 600
600
#1D7CAA
oklch(55.5% 0.109 235.7)
-
Step 700
700
#0B6892
oklch(49% 0.102 236)
-
Step 800
800 (this color)
#054F70
oklch(40.4% 0.084 235.8)
-
Step 900
900
#184760
oklch(37.8% 0.066 235.7)
-
Step 950
950
#102938
oklch(26.9% 0.042 237.4)
#054F70 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) | #3F4F71 | 0.050 |
| Deuteranopia (no green cones) | #31466F | 0.039 |
| Tritanopia (no blue cones) | #00585A | 0.054 |
| Achromatopsia (no color) | #4A4A4A | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #054F70
#054F70
oklch(40.4% 0.084 235.8)
- #6B3B14
#6B3B14
oklch(40.5% 0.085 55.8)
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 #054F70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.031
- Light Navy #155084 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.042
- Twilight Blue #0A437A ΔE 0.044
- Deep Teal #00555A ΔE 0.048
- Charcoal #264653 ΔE 0.051
- Dusk Blue #26538D ΔE 0.055
- Petrol #005F6A ΔE 0.056
Use #054F70 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.