#274BAB
Closest named color: Sapphire (#2138AB). oklch(44.6% 0.16 265), rgb(39, 75, 171).
Aa
White text reads best on this color (7.83:1).
About this color
#274BAB is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.160 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.047 away. White text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.68:1 |
| White text | 7.83:1 |
Values
| HEX | #274BAB |
| RGB | rgb(39, 75, 171) |
| HSL | hsl(224, 63%, 41%) |
| OKLCH | oklch(44.6% 0.16 265) |
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 #274BAB | 7.83:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #274BAB | 2.68:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #274BAB text on white | 7.83:1 | AAA | Lc 86.7 | Fine for body text |
| #274BAB text on black | 2.68:1 | Fails | Lc -15.4 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FC
oklch(88.4% 0.052 264.8)
-
Step 300
300
#A3C0FE
oklch(80.9% 0.094 265)
-
Step 400
400
#729DFD
oklch(70.7% 0.149 264.7)
-
Step 500
500
#4F80FB
oklch(63% 0.191 265)
-
Step 600
600
#3566EA
oklch(55.6% 0.207 264.9)
-
Step 700
700
#2953CC
oklch(49% 0.193 265.2)
-
Step 800
800 (this color)
#274BAB
oklch(44.6% 0.16 265)
-
Step 900
900
#203C83
oklch(37.8% 0.124 264.8)
-
Step 950
950
#13244C
oklch(27.1% 0.077 264.5)
#274BAB 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) | #0058AE | 0.035 |
| Deuteranopia (no green cones) | #004CA9 | 0.021 |
| Tritanopia (no blue cones) | #006373 | 0.127 |
| Achromatopsia (no color) | #525252 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274BAB
#274BAB
oklch(44.6% 0.16 265)
- #6B4F00
#6B4F00
oklch(44.5% 0.091 85)
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 #274BAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.047
- Cobalt #1E488F ΔE 0.047
- Blue Blue #2242C7 ΔE 0.049
- Blueberry #464196 ΔE 0.052
- Dusk Blue #26538D ΔE 0.056
- Majorelle Blue #3F37C9 ΔE 0.066
- Denim Blue #3B5B92 ΔE 0.069
- Light Navy #155084 ΔE 0.069
Use #274BAB 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.