#2D54B1
Closest named color: Blue Blue (#2242C7). oklch(47.2% 0.155 264.2), rgb(45, 84, 177).
Aa
White text reads best on this color (6.96:1).
About this color
#2D54B1 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.155 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.058 away. White text reads best on it, at 6.96:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.01:1 |
| White text | 6.96:1 |
Values
| HEX | #2D54B1 |
| RGB | rgb(45, 84, 177) |
| HSL | hsl(222, 59%, 44%) |
| OKLCH | oklch(47.2% 0.155 264.2) |
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 #2D54B1 | 6.96:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #2D54B1 | 3.01:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #2D54B1 text on white | 6.96:1 | AA | Lc 83.7 | Fine for body text |
| #2D54B1 text on black | 3.01:1 | AA large text | Lc -18.3 | 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
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CBDAF6
oklch(88.6% 0.042 263)
-
Step 300
300
#A8C1F2
oklch(80.9% 0.075 263.7)
-
Step 400
400
#7A9FEC
oklch(70.7% 0.121 264)
-
Step 500
500
#5985E5
oklch(63.1% 0.153 264)
-
Step 600
600
#406CD3
oklch(55.5% 0.166 264.3)
-
Step 700
700 (this color)
#2D54B1
oklch(47.2% 0.155 264.2)
-
Step 800
800
#2A4A94
oklch(42.7% 0.128 264.1)
-
Step 900
900
#263E76
oklch(37.6% 0.1 264.6)
-
Step 950
950
#162545
oklch(27% 0.063 263.8)
#2D54B1 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) | #1460B4 | 0.032 |
| Deuteranopia (no green cones) | #0054AF | 0.025 |
| Tritanopia (no blue cones) | #006A7A | 0.122 |
| Achromatopsia (no color) | #595959 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D54B1
#2D54B1
oklch(47.2% 0.155 264.2)
- #755600
#755600
oklch(47.3% 0.097 84.3)
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 #2D54B1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.058
- Denim Blue #3B5B92 ΔE 0.058
- Mid Blue #276AB3 ΔE 0.059
- Dusk Blue #26538D ΔE 0.059
- Blueberry #464196 ΔE 0.065
- Cobalt #1E488F ΔE 0.065
- Dusky Blue #475F94 ΔE 0.067
- Twilight #4E518B ΔE 0.071
Use #2D54B1 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.