#045DBE
Closest named color: Mid Blue (#276AB3). oklch(49.2% 0.169 256.6), rgb(4, 93, 190).
Aa
White text reads best on this color (6.33:1).
About this color
#045DBE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.169 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.046 away. White text reads best on it, at 6.33:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #045DBE |
| RGB | rgb(4, 93, 190) |
| HSL | hsl(211, 96%, 38%) |
| OKLCH | oklch(49.2% 0.169 256.6) |
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 #045DBE | 6.33:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #045DBE | 3.31:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #045DBE text on white | 6.33:1 | AA | Lc 80.8 | Fine for body text |
| #045DBE text on black | 3.31:1 | AA large text | Lc -21.1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF8
oklch(88.5% 0.046 256.5)
-
Step 300
300
#9FC3F6
oklch(80.9% 0.082 257.1)
-
Step 400
400
#69A2F1
oklch(70.7% 0.131 256.8)
-
Step 500
500
#3D88EC
oklch(63% 0.168 256.7)
-
Step 600
600
#1570DB
oklch(55.7% 0.182 256.5)
-
Step 700
700 (this color)
#045DBE
oklch(49.2% 0.169 256.6)
-
Step 800
800
#0B4C99
oklch(42.6% 0.14 256.6)
-
Step 900
900
#14407A
oklch(37.6% 0.11 256.9)
-
Step 950
950
#0D2647
oklch(26.9% 0.069 256.4)
#045DBE 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) | #1968C2 | 0.032 |
| Deuteranopia (no green cones) | #0058BC | 0.014 |
| Tritanopia (no blue cones) | #007584 | 0.128 |
| Achromatopsia (no color) | #606060 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045DBE
#045DBE
oklch(49.2% 0.169 256.6)
- #825800
#825800
oklch(49.3% 0.103 76.7)
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 #045DBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.046
- Blue Blue #2242C7 ΔE 0.065
- French Blue #436BAD ΔE 0.068
- Warm Blue #4B57DB ΔE 0.071
- Azul #1D5DEC ΔE 0.073
- Denim Blue #3B5B92 ΔE 0.075
- Peacock Blue #016795 ΔE 0.076
- Royal Blue #4169E1 ΔE 0.077
Use #045DBE 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.