#1D44A4
Closest named color: Sapphire (#2138AB). oklch(42.2% 0.161 263.9), rgb(29, 68, 164).
Aa
White text reads best on this color (8.69:1).
About this color
#1D44A4 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.161 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.030 away. White text reads best on it, at 8.69:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #1D44A4 |
| RGB | rgb(29, 68, 164) |
| HSL | hsl(223, 70%, 38%) |
| OKLCH | oklch(42.2% 0.161 263.9) |
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 #1D44A4 | 8.69:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #1D44A4 | 2.41:1 | Fails | Lc 14.8 | Not readable |
| #1D44A4 text on white | 8.69:1 | AAA | Lc 89.2 | Fine for body text |
| #1D44A4 text on black | 2.41:1 | Fails | Lc -13.0 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFD
oklch(88.6% 0.052 263.7)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400
#709DFE
oklch(70.7% 0.151 264.1)
-
Step 500
500
#4B81FC
oklch(63.1% 0.192 263.9)
-
Step 600
600
#3066EC
oklch(55.6% 0.211 264.1)
-
Step 700
700
#2354CD
oklch(49.1% 0.195 263.9)
-
Step 800
800 (this color)
#1D44A4
oklch(42.2% 0.161 263.9)
-
Step 900
900
#1D3C83
oklch(37.7% 0.125 263.7)
-
Step 950
950
#12244D
oklch(27.1% 0.079 264)
#1D44A4 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) | #0052A7 | 0.036 |
| Deuteranopia (no green cones) | #0045A2 | 0.015 |
| Tritanopia (no blue cones) | #005C6D | 0.125 |
| Achromatopsia (no color) | #4B4B4B | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D44A4
#1D44A4
oklch(42.2% 0.161 263.9)
- #644900
#644900
oklch(42.3% 0.087 84.2)
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 #1D44A4, closest first.
No curated palette has a color within ΔE 0.04 of #1D44A4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.030
- Cobalt #1E488F ΔE 0.037
- Blueberry #464196 ΔE 0.053
- Blue Blue #2242C7 ΔE 0.056
- Dusk Blue #26538D ΔE 0.060
- Light Navy #155084 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.066
- Twilight Blue #0A437A ΔE 0.072
Use #1D44A4 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.