#144F9F
Closest named color: Cobalt (#1E488F). oklch(43.9% 0.143 257.9), rgb(20, 79, 159).
Aa
White text reads best on this color (7.92:1).
About this color
#144F9F is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.143 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.030 away. White text reads best on it, at 7.92:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.64:1 |
| White text | 7.92:1 |
Values
| HEX | #144F9F |
| RGB | rgb(20, 79, 159) |
| HSL | hsl(215, 78%, 35%) |
| OKLCH | oklch(43.9% 0.143 257.9) |
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 #144F9F | 7.92:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #144F9F | 2.64:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #144F9F text on white | 7.92:1 | AAA | Lc 87.0 | Fine for body text |
| #144F9F text on black | 2.64:1 | Fails | Lc -15.2 | Dividers and decoration only |
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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF8
oklch(88.6% 0.046 257.6)
-
Step 300
300
#9FC3F7
oklch(81% 0.084 257.5)
-
Step 400
400
#6AA1F3
oklch(70.6% 0.134 258.2)
-
Step 500
500
#4087EE
oklch(63% 0.171 258)
-
Step 600
600
#1B6EDD
oklch(55.5% 0.186 257.9)
-
Step 700
700
#0C5CC0
oklch(49.2% 0.172 257.8)
-
Step 800
800 (this color)
#144F9F
oklch(43.9% 0.143 257.9)
-
Step 900
900
#16407B
oklch(37.7% 0.111 257.8)
-
Step 950
950
#0E2648
oklch(27% 0.07 257.6)
#144F9F 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) | #1D58A2 | 0.027 |
| Deuteranopia (no green cones) | #004B9D | 0.015 |
| Tritanopia (no blue cones) | #00626F | 0.108 |
| Achromatopsia (no color) | #515151 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #144F9F
#144F9F
oklch(43.9% 0.143 257.9)
- #6E4B00
#6E4B00
oklch(44% 0.092 78)
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 #144F9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.030
- Dusk Blue #26538D ΔE 0.035
- Light Navy #155084 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.058
- Blueberry #464196 ΔE 0.059
- Sapphire #2138AB ΔE 0.059
Use #144F9F 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.