#054988
Closest named color: Cobalt (#1E488F). oklch(40.5% 0.121 253.1), rgb(5, 73, 136).
Aa
White text reads best on this color (9.07:1).
About this color
#054988 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.121 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.019 away. White text reads best on it, at 9.07:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #054988 |
| RGB | rgb(5, 73, 136) |
| HSL | hsl(209, 93%, 28%) |
| OKLCH | oklch(40.5% 0.121 253.1) |
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 #054988 | 9.07:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #054988 | 2.31:1 | Fails | Lc 13.7 | Not readable |
| #054988 text on white | 9.07:1 | AAA | Lc 90.3 | Preferred for body text |
| #054988 text on black | 2.31:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C7DBF3
oklch(88.4% 0.04 253)
-
Step 300
300
#A1C4EE
oklch(80.9% 0.071 253.2)
-
Step 400
400
#6CA4E6
oklch(70.7% 0.114 253.3)
-
Step 500
500
#418CDE
oklch(63.2% 0.145 252.8)
-
Step 600
600
#1B74CC
oklch(55.6% 0.158 253)
-
Step 700
700
#0A61B1
oklch(49.2% 0.147 253.1)
-
Step 800
800 (this color)
#054988
oklch(40.5% 0.121 253.1)
-
Step 900
900
#164272
oklch(37.6% 0.095 253.4)
-
Step 950
950
#0F2743
oklch(27% 0.06 253.9)
#054988 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) | #274E8A | 0.028 |
| Deuteranopia (no green cones) | #064387 | 0.017 |
| Tritanopia (no blue cones) | #005862 | 0.088 |
| Achromatopsia (no color) | #494949 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #054988
#054988
oklch(40.5% 0.121 253.1)
- #654000
#654000
oklch(40.5% 0.086 72.5)
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 #054988, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.019
- Light Navy #155084 ΔE 0.025
- Twilight Blue #0A437A ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.036
- Dusk Blue #26538D ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.062
- Marine Blue #01386A ΔE 0.069
- Blueberry #464196 ΔE 0.069
Use #054988 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.