#004AAC
Closest named color: Sapphire (#2138AB). oklch(43.6% 0.17 259.1), rgb(0, 74, 172).
Aa
White text reads best on this color (8.15:1).
About this color
#004AAC is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.170 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.042 away. White text reads best on it, at 8.15:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #004AAC |
| RGB | rgb(0, 74, 172) |
| HSL | hsl(214, 100%, 34%) |
| OKLCH | oklch(43.6% 0.17 259.1) |
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 #004AAC | 8.15:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #004AAC | 2.57:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #004AAC text on white | 8.15:1 | AAA | Lc 87.3 | Fine for body text |
| #004AAC text on black | 2.57:1 | Fails | Lc -14.8 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C4DBFE
oklch(88.6% 0.054 258.7)
-
Step 300
300
#9BC2FF
oklch(80.8% 0.097 259.2)
-
Step 400
400
#63A0FF
oklch(70.7% 0.154 259)
-
Step 500
500
#3384FF
oklch(63.1% 0.199 259)
-
Step 600
600
#0069EE
oklch(55.5% 0.216 259.1)
-
Step 700
700
#0058CA
oklch(49.1% 0.191 259.1)
-
Step 800
800 (this color)
#004AAC
oklch(43.6% 0.17 259.1)
-
Step 900
900
#0C3D86
oklch(37.6% 0.133 259.3)
-
Step 950
950
#09254E
oklch(27.1% 0.083 258.4)
#004AAC 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) | #0057AF | 0.035 |
| Deuteranopia (no green cones) | #0048AA | 0.006 |
| Tritanopia (no blue cones) | #006373 | 0.129 |
| Achromatopsia (no color) | #4F4F4F | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004AAC
#004AAC
oklch(43.6% 0.17 259.1)
- #6C4A00
#6C4A00
oklch(43.6% 0.091 78.5)
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 #004AAC, closest first.
No curated palette has a color within ΔE 0.04 of #004AAC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.042
- Cobalt #1E488F ΔE 0.048
- Blue Blue #2242C7 ΔE 0.049
- Dusk Blue #26538D ΔE 0.062
- Blueberry #464196 ΔE 0.069
- Light Navy #155084 ΔE 0.070
- Majorelle Blue #3F37C9 ΔE 0.074
- Deep Sea Blue #015482 ΔE 0.078
Use #004AAC 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.