#054091
Closest named color: Cobalt (#1E488F). oklch(39.1% 0.145 258.9), rgb(5, 64, 145).
Aa
White text reads best on this color (9.77:1).
About this color
#054091 is a dark, vivid blue. In OKLCH its lightness is 39%, its chroma 0.145 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.029 away. White text reads best on it, at 9.77:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #054091 |
| RGB | rgb(5, 64, 145) |
| HSL | hsl(215, 93%, 29%) |
| OKLCH | oklch(39.1% 0.145 258.9) |
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 #054091 | 9.77:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #054091 | 2.14:1 | Fails | Lc 12.0 | Not readable |
| #054091 text on white | 9.77:1 | AAA | Lc 91.9 | Preferred for body text |
| #054091 text on black | 2.14:1 | Fails | Lc -10.4 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C3DBFF
oklch(88.5% 0.056 258.4)
-
Step 300
300
#9BC2FF
oklch(80.8% 0.097 259.2)
-
Step 400
400
#63A0FF
oklch(70.7% 0.154 259)
-
Step 500
500
#3284FF
oklch(63.1% 0.199 258.9)
-
Step 600
600
#006AED
oklch(55.6% 0.214 258.9)
-
Step 700
700
#0059C9
oklch(49.2% 0.189 258.8)
-
Step 800
800
#0048A7
oklch(42.7% 0.165 259)
-
Step 900
900 (this color)
#054091
oklch(39.1% 0.145 258.9)
-
Step 950
950
#052452
oklch(27% 0.092 258.7)
#054091 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) | #004A94 | 0.027 |
| Deuteranopia (no green cones) | #003E8F | 0.007 |
| Tritanopia (no blue cones) | #005462 | 0.109 |
| Achromatopsia (no color) | #444444 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #054091
#054091
oklch(39.1% 0.145 258.9)
- #5C3F00
#5C3F00
oklch(39% 0.081 79.2)
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 #054091, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.029
- Twilight Blue #0A437A ΔE 0.040
- Sapphire #2138AB ΔE 0.049
- Light Navy #155084 ΔE 0.055
- Dusk Blue #26538D ΔE 0.063
- Deep Sea Blue #015482 ΔE 0.066
- Blueberry #464196 ΔE 0.067
- Marine Blue #01386A ΔE 0.069
Use #054091 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.