#2D5FBB
Closest named color: Mid Blue (#276AB3). oklch(50.3% 0.155 261.3), rgb(45, 95, 187).
Aa
White text reads best on this color (6.05:1).
About this color
#2D5FBB is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.155 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.034 away. White text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #2D5FBB |
| RGB | rgb(45, 95, 187) |
| HSL | hsl(219, 61%, 45%) |
| OKLCH | oklch(50.3% 0.155 261.3) |
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 #2D5FBB | 6.05:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #2D5FBB | 3.46:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #2D5FBB text on white | 6.05:1 | AA | Lc 79.8 | Fine for body text |
| #2D5FBB text on black | 3.46:1 | AA large text | Lc -22.0 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A6C2F2
oklch(81% 0.075 261.1)
-
Step 400
400
#76A0EB
oklch(70.6% 0.12 261.5)
-
Step 500
500
#5287E5
oklch(63.2% 0.153 261)
-
Step 600
600
#376ED3
oklch(55.6% 0.167 261.3)
-
Step 700
700 (this color)
#2D5FBB
oklch(50.3% 0.155 261.3)
-
Step 800
800
#234B94
oklch(42.6% 0.129 261.2)
-
Step 900
900
#213F76
oklch(37.6% 0.101 261.4)
-
Step 950
950
#142645
oklch(27.1% 0.063 260.6)
#2D5FBB 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) | #2969BE | 0.026 |
| Deuteranopia (no green cones) | #005CB9 | 0.025 |
| Tritanopia (no blue cones) | #007584 | 0.122 |
| Achromatopsia (no color) | #626262 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5FBB
#2D5FBB
oklch(50.3% 0.155 261.3)
- #825D00
#825D00
oklch(50.4% 0.104 81.5)
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 #2D5FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.034
- French Blue #436BAD ΔE 0.049
- Warm Blue #4B57DB ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.065
- Iris #6258C4 ΔE 0.066
- Dusky Blue #475F94 ΔE 0.066
- Royal Blue #4169E1 ΔE 0.068
- Windows Blue #3778BF ΔE 0.070
Use #2D5FBB 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.