#004A90
Closest named color: Cobalt (#1E488F). oklch(41.3% 0.132 254.1), rgb(0, 74, 144).
Aa
White text reads best on this color (8.81:1).
About this color
#004A90 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.132 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.015 away. White text reads best on it, at 8.81:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.38:1 |
| White text | 8.81:1 |
Values
| HEX | #004A90 |
| RGB | rgb(0, 74, 144) |
| HSL | hsl(209, 100%, 28%) |
| OKLCH | oklch(41.3% 0.132 254.1) |
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 #004A90 | 8.81:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #004A90 | 2.38:1 | Fails | Lc 14.5 | Not readable |
| #004A90 text on white | 8.81:1 | AAA | Lc 89.5 | Fine for body text |
| #004A90 text on black | 2.38:1 | Fails | Lc -12.8 | 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
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DBF6
oklch(88.4% 0.044 254.8)
-
Step 300
300
#9FC4F2
oklch(81% 0.077 254.1)
-
Step 400
400
#68A4EC
oklch(70.8% 0.123 253.8)
-
Step 500
500
#3B8BE6
oklch(63.2% 0.158 253.9)
-
Step 600
600
#0F72D4
oklch(55.6% 0.172 254.3)
-
Step 700
700
#005FB6
oklch(49% 0.157 254.2)
-
Step 800
800 (this color)
#004A90
oklch(41.3% 0.132 254.1)
-
Step 900
900
#124276
oklch(37.7% 0.102 253.7)
-
Step 950
950
#0D2745
oklch(27% 0.064 254)
#004A90 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) | #215193 | 0.029 |
| Deuteranopia (no green cones) | #00458F | 0.014 |
| Tritanopia (no blue cones) | #005B66 | 0.097 |
| Achromatopsia (no color) | #4A4A4A | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004A90
#004A90
oklch(41.3% 0.132 254.1)
- #674300
#674300
oklch(41.4% 0.088 74.4)
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 #004A90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.015
- Light Navy #155084 ΔE 0.030
- Dusk Blue #26538D ΔE 0.038
- Twilight Blue #0A437A ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.062
- Sapphire #2138AB ΔE 0.064
- Blueberry #464196 ΔE 0.066
Use #004A90 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.