#2B5FA7
Closest named color: Mid Blue (#276AB3). oklch(48.8% 0.128 257.2), rgb(43, 95, 167).
Aa
White text reads best on this color (6.36:1).
About this color
#2B5FA7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.128 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.033 away. White text reads best on it, at 6.36:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.29:1 |
| White text | 6.36:1 |
Values
| HEX | #2B5FA7 |
| RGB | rgb(43, 95, 167) |
| HSL | hsl(215, 59%, 41%) |
| OKLCH | oklch(48.8% 0.128 257.2) |
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 #2B5FA7 | 6.36:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #2B5FA7 | 3.29:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #2B5FA7 text on white | 6.36:1 | AA | Lc 81.3 | Fine for body text |
| #2B5FA7 text on black | 3.29:1 | AA large text | Lc -20.5 | 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 700.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDAF0
oklch(88.4% 0.034 257.9)
-
Step 300
300
#A8C3E9
oklch(81% 0.061 256.9)
-
Step 400
400
#79A2DE
oklch(70.6% 0.099 257.8)
-
Step 500
500
#558AD5
oklch(63% 0.127 257.2)
-
Step 600
600
#3A73C2
oklch(55.7% 0.137 257.1)
-
Step 700
700 (this color)
#2B5FA7
oklch(48.8% 0.128 257.2)
-
Step 800
800
#254E88
oklch(42.6% 0.107 257.5)
-
Step 900
900
#23426D
oklch(37.8% 0.083 257)
-
Step 950
950
#152740
oklch(27.1% 0.053 256.9)
#2B5FA7 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) | #3C65AA | 0.025 |
| Deuteranopia (no green cones) | #265AA6 | 0.015 |
| Tritanopia (no blue cones) | #00707B | 0.100 |
| Achromatopsia (no color) | #5F5F5F | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5FA7
#2B5FA7
oklch(48.8% 0.128 257.2)
- #805700
#805700
oklch(48.9% 0.102 77.1)
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 #2B5FA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.035
- Dusky Blue #475F94 ΔE 0.041
- French Blue #436BAD ΔE 0.044
- Peacock Blue #016795 ΔE 0.045
- Denim #3B638C ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.050
- Dusk Blue #26538D ΔE 0.051
Use #2B5FA7 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.